I've had it for about 2 months now and am very happy with the device. No more filling and lugging 5 gallon jugs and buying bottled water. The tubes are very easy to install, they are color coded and despite the fact that it is a different model than the one I received, I was able to follow the instructions without any problems. As expected, the device takes up a lot of space. The installation took about an hour, which included flushing pre-filters 2 and 3 and waiting for the tank to fill and empty again. I'm glad I went for the booster pump version. I have a ratio between 1:2 and 1:3. A friend of mine just a few blocks away bought one without an amp and the gear ratio is 1:4 or better. When the pump turns on you can hear it at first, but after that it's almost inaudible. City water supply PPM is around 150 and my alkaline cartridge yield is 8 ppm. pH between 5-6.5. Bought TDS meter and pH drops from Revain. I had an issue with the alkaline cartridge not releasing minerals and raising the pH. I contacted support and CS was very helpful and they ended up sending me a replacement cartridge. Now my PPM is between 25-30ppm after the alkaline cartridge and the pH is just above 7. The cartridge may be defective. The only leak I had was the valve on the tank, but that was due to my actions. I just didn't make enough turns. Since we are renters I didn't want to mess with the garbage disposal electrical hook up, so I bought a push button air garbage disposal switch and just left the main switch on. and luckily an extra hole in the sink was patched to install the knob. Update: It's been 4 months and still works great. Installed pressure gauge, tee and valve. The sensor is just to see what the pressure is. 30psi before the booster turns on and over 100psi when the booster turns on. A tee and valve so I can bypass the mineral cartridge to test and use reverse osmosis for our humidifier. Pictures: Reading 6 TDS in front of the mineral cartridge and 31 TDS is reverse osmosis going through the mineral cartridge. City water can vary between 120 and 250. At the time of recording, the TDS was 228. For the PH, the left one before the mineral cartridge display, "if accurate" is 4, the right one, after reading the mineral cartridge it looks like 8+ again, I don't know exactly how got the drops.
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